How many 7s are there in 31?

38 is 72 percent of what number? What is 2x10-1? How do you write out 9.9 percent? Is sqare root of 9 over 16 rational or irrational? Has the 1977 homicide of Margaret Hastings by her estranged husband p Gary Hastings in Delaware been documented? Where can you fine out what size a pocket watch case is by it's serial number? What is 56 - 23? What is 110 percent in mixed number? What is 62 round to the nearest 10? How many syllables does the word rubbish have? What is it called to believe without having proof? What would be 1.95 rounded to the nearest hundredth place? What is the LCM of 440 and 8 and 6? What is the least common factor of 26 and 6? What is a letter or symbol that is used to represent one or more numbers? How do you solve three times your age plus 9 equals forty-two years? What happens when you multiply a positive whole number by a decimal greater than 1? If you know the radius of a cross section 8 inches from the center of a circle how do you calculate the radius at the center? What is heavier 1 million feather or 1 million dollars? Is raven a two closed syllable?